问题
单项选择题
A distribution of returns that has a greater percentage of small deviations from the mean and a greater percentage of large deviations from the mean compared to a normal distribution:（）
A. is positively skewed.
B. has positive excess kurtosis.
C. is negatively skewed.
答案
参考答案：B
解析：
A distribution that has a greater percentage of small deviations from the mean and a greater percentage of large deviations from the mean will be leptokurtic and will exhibit positive excess kurtosis. The distribution will be taller (more peaked) with fatter tails than a normal distribution.